Energy storage and electricity generation circulating system
A circulation system and energy storage technology, applied in wind power generation, engines, wind turbines, etc., can solve the problems of limited heat exchange efficiency, low energy storage efficiency, and more energy waste, so as to reduce manufacturing difficulty and maintain stable operation The effect of sex and simplification of system structure
Pending Publication Date: 2019-08-30
STATE POWER INVESTMENT CORP RES INST
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Problems solved by technology
[0003] The energy storage system in the related art is generally an open cycle, and only harmless air can be used as the circulating medium, which limits the efficiency of heat exchange and also emits a certain amount of gas; or these energy storage systems are in heat exchange. There is a lot of energy waste in the process, resulting in low energy storage efficiency, and there is room for improvement
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[0014] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are only for explaining the present application, and should not be construed as limiting the present application.
[0015] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of descri...
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The invention discloses an energy storage and electricity generation circulating system. The energy storage and electricity generation circulating system comprises a heat energy storage device, a coldenergy storage device, a drive mechanism, a compressor, a first reversing valve, a first heat exchanger, an intermediate heat exchanger, a turbine, an electric generator, a second reversing valve anda second heat exchanger, wherein the air output end of the compressor, the first pass of the first heat exchanger, the air inlet end of the turbine and the first pass of the intermediate heat exchanger are respectively connected with the first reversing valve, and the first pass of the first heat exchanger is connected with the first pass of the intermediate heat exchanger; the air outlet end ofthe turbine, the first pass of the second heat exchanger, the air inlet end of the compressor and the second pass of the intermediate heat exchanger are respectively connected with the second reversing valve, and the first pass of the second heat exchanger is connected with the second pass of the intermediate heat exchanger; the heat energy storage device is connected with the second pass of the first heat exchanger, and the cold energy storage device is connected with the second pass of the second heat exchanger. According to the energy storage and electricity generation circulating system, agaseous working medium in the system is in closed circulation, thereby contributing to reduction of the compression ratio of the compressor and the expansion ratio of the turbine.
Description
technical field [0001] The present application belongs to the technical field of energy storage manufacturing, and in particular, relates to an energy storage and power generation cycle system. Background technique [0002] Renewable energy sources such as wind power and photovoltaics are unstable and intermittent, and it is difficult to adjust the power generation to match the power load. Thermal power plants also have peak-shaving requirements. Energy storage systems are widely used to accommodate renewable energy or to regulate peaks in thermal power plants. [0003] The energy storage system in the related art is generally an open cycle, and only harmless air can be used as the circulating medium, which limits the efficiency of heat exchange and also emits a certain amount of gas; or these energy storage systems are in heat exchange. The process energy is wasted more, resulting in low energy storage efficiency, and there is room for improvement. Contents of the invent...
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Patent Timeline
Login to View More IPC IPC(8): F01D15/10F01D15/08F04B35/04F04B35/01F03D9/28F28D20/00
CPCF01D15/10F01D15/08F04B35/04F04B35/01F03D9/28F28D20/0034F28D2020/0047Y02E10/72Y02E60/16Y02E60/14
Inventor 张谨奕李京浩白宁王含张玮
Owner STATE POWER INVESTMENT CORP RES INST